Home / 1,016,985.20-1,525,429.20-343,000.40

Finding the Fourth Proportional to 1,016,985.20, 1,525,429.20 and 343,000.40

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Solution

The fourth proportional to 1,016,985.20, 1,525,429.20 and 343,000.40 is: 514,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,985.20 : 1,525,429.20 = 343,000.40 : x
  2. Step 2: Convert to fraction form
    1,016,985.20/1,525,429.20 = 343,000.40/x
  3. Step 3: Cross multiply
    1,016,985.20x = 1,525,429.20 × 343,000.40
  4. Step 4: Simplify right side
    1,016,985.20x = 523,222,825,771.68
  5. Step 5: Solve for x
    x = 523,222,825,771.68/1,016,985.20
  6. Step 6: Final answer
    x = 514,484.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.